Crawling eBay: eBay Product Data Collection

Why do I have to use a proxy IP to crawl eBay?

Engaged in the old iron of data collection know that eBay's anti-climbing mechanism is more strict than the mother checking the post. For example, if you use your own network connected to the wild brush page, less than half an hour quasi-IP to you into a small black room. This time you need toproxy IPCome as a stand-in - it's like playing a game and opening a small number, sealing it and replacing it, without hurting the main number at all.

Recently, there is a price comparison website brother planted, his team was blocked for three consecutive days more than 20 IP, store data is not yet finished raking cool. Later, he used ourResidential agent for ipipgoThe company's IP address is the same as the IP address of the company's website, and the IP address of the company's website is the same as the IP address of the company's website.

The Three Fateful Things About Choosing a Proxy IP

There are millions of agents on the market, but there are only a few types that are suitable for climbing eBay:

Here's the kicker.ipipgo's smart rotation program, their home IP pool has two major killers:
1. Automatic matching of the geographic location of the target site
2. Automatically switch to a new IP address if the request fails more than 3 times.
This is especially useful for collecting multinational e-commerce data, for example, if you want to climb the German station, the system automatically assigns the export IP of Frankfurt.

Sample code

Here's a Python requests configuration template (remember to install the ipipgo SDK):

import requests
from ipipgo import Rotator

proxy = Rotator(
    api_key="Your ipipgo key", strategy="country:us" Specify US export.
    strategy="country:us" Specify US exports.
)

url = "https://www.ebay.com/itm/123456"
headers = {'User-Agent': 'Mozilla/5.0'}

for _ in range(100): with proxy.get_session() as s: with
    with proxy.get_session() as s: resp = s.get(url).
        resp = s.get(url, headers=headers)
        print(resp.text[:500]) prints the first 500 characters
        time.sleep(random.uniform(1,3)) Random delay anti-detection

Watch this.stochastic delayEspecially critical, eBay's backcrawl will calculate the standard deviation of the request interval. It is recommended to set 1-5 seconds irregular pause, don't whole fixed time interval.

Five Elements of Anti-Blocking

Based on three months of data from our test team:

Success Rate Comparison:
┌──────────────┬─────────┐
| Protection | Survival |
├óΓé¼┼ô──────────────┼ô─────────┤
| Naked Direct Connect | 17% |
| Normal Proxy | 43% |
| ipipgo program | 89% |
└──────────────┴─────────┘

To achieve high survival it must be done:
1. Change User-Agent per request
2. Carrying full cookie chains
3. Simulate a real person's click track (don't access the API directly)
4. For processing image verification codeDisaster recovery mechanisms for ipipgoAutomatic IP switching
5. Avoid peak collection times (3-6 a.m. MST is optimal)

QA First Aid Kit

Q: What should I do if I always encounter 403 error?
A: First check if the request header contains Accept-Encoding, then confirm the anonymity level of the proxy IP. This basically won't happen with ipipgo's high anonymity proxies.

Q: Slow as a snail in acquisition?
A: Don't use a free proxy! It is recommended to open ipipgo's concurrency package, 50 threads + 500 IP pool, an hour can jack tens of thousands of product details.

Q: The data is always missing arms and legs?
A: 80% is intercepted by the anti-climbing, add a state code judgment before xpath parsing:

if resp.status_code == 200 and "ds_div" in resp.text:
     Normal parsing
else.
    proxy.ban_current_ip() auto-blackout invalid IPs

Tell the truth.

I've seen too many people use free proxies on the cheap, and as a result, their IPs have been blocked, and serious accounts have been yanked. Now reliable agents are not expensive, likeipipgo's newcomer packageThe 20 bucks will get you 500 quality IPs, which is only a few cents per request, and is much more cost-effective than getting blocked and re-homing your number.

Lastly, don't write a dead proxy address in your code! It's better to configure it with an environment variable so that you don't have to change the code to switch service providers. For example:

import os
proxy_url = os.getenv('IPIPGO_ENDPOINT','http://gateway.ipipgo.io:8000')

According to this set of whole, to ensure that you climb eBay data with Dev as silky smooth. What practical problems can go to ipipgo official website to find technical support, their 24-hour real customer service than some platforms of the robot more reliable.